Sanford w



(No Model.)

v s. W. LASOR. SAND SGRAPER FOR BRICK MACHINES.

Patent Sept. 18, 1883,

l'ig/i .2-

N. versus Pboloiflhngnpher. Washmgilm. n. c.

UNITED STATES PATENT OFF CE.

SANFORD w. LASOR, or PHILADELPHIA, PENNSYLVANIA, ASSIGNOR To CYRUSCHAMBERS, JR, or SAME PLACE.

SAND-SCRAPER FOR BRICK-MACHINES.

' SPECIFICATION forming part of Letters Patent No. 285,043, datedSeptember 18, 1883.

Application filed February 8, 1883. (No model.)

To all whom it may concern: 7

Be it known that I, SANFORD W. LAsoR, a citizen of the United States,residing at the city and county of Philadelphia, and State ofPennsylvania, have invented certain new and useful Improvements inSand-Scrapers for Brick-Machines, of which the following is a full,clear, and exact description, reference being had to the accompanyingdrawings.

Thisinventionisdesignedtoimprovetheconstruction and operation of thedevices termed scrapers or wipers, which are used,

. in connection with the brick-making machines purpose of removingsurplus sand from thetop and sides of the sanded bar of clay before itissues from the sand-box on its way to the cut-off mechanism.

The nature of my improvement will clearly appear from the followingdescription, reference being had to the accompanying drawings, in whichFigure 1 is atop viewof a sand-box and scraper-frame provided with myinvention. Fig. 2 is a front elevation thereof; and Fig. 3 is a verticalsection on the line a b, Fig. 2.

That the operation of my improvement, which, as above stated, relatesonly to the scrapers or wipers, may be readily understood without otherreference, I shall first briefly describe the general arrangement andpurpose of such sand-scrapers.

The bar of clay, (indicated by the broken lines in Fig. 3, as it emergesfrom the die D of aChambers machine, enters the sandbox B, the sandfalling in a continuous and liberal stream from the hopper H throughopenings 71,, leading from the latter into the sandbox, Figsjl and 2.The clay bar becomes thus well coated with sand, and as it advances thesurplus is removed by means of top and side scrapers, R, secured inaframe, A, which (as recently made by said Cyrus Chambers, J r., and asshown in the drawings) is hinged to the hopper of the sand-box.

Heretofore the scrapers It have been made of quite flexible india rubberfixed in the scraper-frame, so that while they scraped off the surplusof sand from the bar of clay they would yield sidewise to obstructions,or when from any cause the dimensions of the clay bar became enlarged toany considerable extent. The operation of these scrapers has not,however, been wholly satisfactory at all times, for the reason that, inorder to permit the necessary giving way to obstructions, the rubberhadto be too flexible; and, besides, there was no reliable and accuratemeans for adjusting the scrapers.

My present improvement is intended to and does remedy these defects.

It consists in securing the scrapers R (which are preferably made ofsheet-rubber of suitable thickness and consistency) to clamps C, thatare provided with guide-rods E, working in bearings in brackets T,fastened to the frame A, and with compression-springs S.

The inward movement or extension .of the scrapers toward the bar of clayis regulated by means of a collar, M, on the end of each of theguide-rods E, and the tension of the springs S, by means of a collar, N,also upon the guiderods, as shown. Thus it is obvious, while provisionis made for the scrapers to give way, they are made sufficiently rigid,are held to their work, and may be nicely and readily adjusted withrelation to the bar of clay. g

'I do not confine myself to the identical arrangement of the springs andscrapers, nor to the kind of spring, nor to the specific means foradjusting the tension and throw of the scrapers shown but What I claimas new, and desire to secure by Letters Patent, is

' 1. In combination with the sand-box of a brick-machine, the slidingscrapers and tension-springs, constructed, combined, and .op-

erating substantially as and for the purposes described. I

2. The combination of the sand-box, the scrapers, the guide-rods workingin suitable bearings, the springs, and the adjusting-collars,substantially as and for the purposes set forth.

In testimony whereof I have hereunto affixed my signature this 1st dayof February,

SANFORD w. LAson.

